321872640

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{769}}^1$

素因数の和:902

約数の個数: 144

約数和(自身を含む): 1038760800

約数和(自身を除く): 716888160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 109, 120, 128, 160, 192, 218, 240, 256, 320, 327, 384, 436, 480, 545, 640, 654, 768, 769, 872, 960, 1090, 1280, 1308, 1538, 1635, 1744, 1920, 2180, 2307, 2616, 3076, 3270, 3488, 3840, 3845, 4360, 4614, 5232, 6152, 6540, 6976, 7690, 8720, 9228, 10464, 11535, 12304, 13080, 13952, 15380, 17440, 18456, 20928, 23070, 24608, 26160, 27904, 30760, 34880, 36912, 41856, 46140, 49216, 52320, 61520, 69760, 73824, 83712, 83821, 92280, 98432, 104640, 123040, 139520, 147648, 167642, 184560, 196864, 209280, 246080, 251463, 295296, 335284, 369120, 418560, 419105, 492160, 502926, 590592, 670568, 738240, 838210, 984320, 1005852, 1257315, 1341136, 1476480, 1676420, 2011704, 2514630, 2682272, 2952960, 3352840, 4023408, 5029260, 5364544, 6705680, 8046816, 10058520, 10729088, 13411360, 16093632, 20117040, 21458176, 26822720, 32187264, 40234080, 53645440, 64374528, 80468160, 107290880, 160936320, 321872640]

約数ペア:

[(1, 321872640), (2, 160936320), (3, 107290880), (4, 80468160), (5, 64374528), (6, 53645440), (8, 40234080), (10, 32187264), (12, 26822720), (15, 21458176), (16, 20117040), (20, 16093632), (24, 13411360), (30, 10729088), (32, 10058520), (40, 8046816), (48, 6705680), (60, 5364544), (64, 5029260), (80, 4023408), (96, 3352840), (109, 2952960), (120, 2682272), (128, 2514630), (160, 2011704), (192, 1676420), (218, 1476480), (240, 1341136), (256, 1257315), (320, 1005852), (327, 984320), (384, 838210), (436, 738240), (480, 670568), (545, 590592), (640, 502926), (654, 492160), (768, 419105), (769, 418560), (872, 369120), (960, 335284), (1090, 295296), (1280, 251463), (1308, 246080), (1538, 209280), (1635, 196864), (1744, 184560), (1920, 167642), (2180, 147648), (2307, 139520), (2616, 123040), (3076, 104640), (3270, 98432), (3488, 92280), (3840, 83821), (3845, 83712), (4360, 73824), (4614, 69760), (5232, 61520), (6152, 52320), (6540, 49216), (6976, 46140), (7690, 41856), (8720, 36912), (9228, 34880), (10464, 30760), (11535, 27904), (12304, 26160), (13080, 24608), (13952, 23070), (15380, 20928), (17440, 18456)]